Home / 990,534.30-1,485,801.45-931,485.30

Finding the Fourth Proportional to 990,534.30, 1,485,801.45 and 931,485.30

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Solution

The fourth proportional to 990,534.30, 1,485,801.45 and 931,485.30 is: 1,397,227.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,534.30 : 1,485,801.45 = 931,485.30 : x
  2. Step 2: Convert to fraction form
    990,534.30/1,485,801.45 = 931,485.30/x
  3. Step 3: Cross multiply
    990,534.30x = 1,485,801.45 × 931,485.30
  4. Step 4: Simplify right side
    990,534.30x = 1,384,002,209,393.69
  5. Step 5: Solve for x
    x = 1,384,002,209,393.69/990,534.30
  6. Step 6: Final answer
    x = 1,397,227.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.